1type: trigger
2name: sigmahq/proc_creation_win_browsers_chromium_mockbin_abuse
3description: |
4  Detects the execution of a Chromium based browser process with the "headless" flag and a URL pointing to the mockbin.org service (which can be used to exfiltrate data).
5filter: |
6  (evt.Meta.service == 'sysmon' && evt.Parsed.EventID == '1') && ((evt.Parsed.Image endsWith '\\brave.exe' || evt.Parsed.Image endsWith '\\chrome.exe' || evt.Parsed.Image endsWith '\\msedge.exe' || evt.Parsed.Image endsWith '\\opera.exe' || evt.Parsed.Image endsWith '\\vivaldi.exe') && evt.Parsed.CommandLine contains '--headless' && (evt.Parsed.CommandLine contains '://run.mocky' || evt.Parsed.CommandLine contains '://mockbin'))
7blackhole: 2m
8#status: test
9labels:
10  service: windows
11  confidence: 1
12  spoofable: 0
13  classification:
14
15  label: "Chromium Browser Headless Execution To Mockbin Like Site"
16  behavior : "windows:audit"
17  remediation: false
18
19scope:
20  type: ParentProcessId
21  expression: evt.Parsed.ParentProcessId
22
23